netdev - Re: [patch net-next v2 0/8] Add support for pipeline debug (dpipe)

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Date:   Tue, 28 Mar 2017 17:29:41 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     jiri@...nulli.us
Cc:     netdev@...r.kernel.org, arkadis@...lanox.com, idosch@...lanox.com,
        mlxsw@...lanox.com, jhs@...atatu.com, ivecera@...hat.com,
        roopa@...ulusnetworks.com, f.fainelli@...il.com,
        vivien.didelot@...oirfairelinux.com, john.fastabend@...il.com,
        andrew@...n.ch, simon.horman@...ronome.com
Subject: Re: [patch net-next v2 0/8] Add support for pipeline debug (dpipe)

From: Jiri Pirko <jiri@...nulli.us>
Date: Tue, 28 Mar 2017 17:24:09 +0200

> From: Jiri Pirko <jiri@...lanox.com>
> 
> Arkadi says:
> 
> While doing the hardware offloading process much of the hardware
> specifics cannot be presented. An example for such is the routing
> LPM algorithm which differ in hardware implementation from the
> kernel software implementation. The only information the user receives
> is whether specific route is offloaded or not, but he cannot really
> understand the underlying implementation nor get the specific statistics
> related to that process.
> 
> Another example is ACL offload using TC which is commonly implemented
> using TCAM memory. Currently there is no capability to gain visibility
> into the TCAM structure and to debug suboptimal resource allocation.
> 
> This patchset introduces capability for exporting the ASICs pipeline
> abstraction via devlink infrastructure, which should serve as an
> complementary tool. This infrastructure allows the user to get visibility
> into the ASIC by modeling it as a set of match/action tables.
 ...

Series applied, thanks!